Home / 122,678.35-169,295.16-68,231.01

Finding the Fourth Proportional to 122,678.35, 169,295.16 and 68,231.01

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Solution

The fourth proportional to 122,678.35, 169,295.16 and 68,231.01 is: 94,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,678.35 : 169,295.16 = 68,231.01 : x
  2. Step 2: Convert to fraction form
    122,678.35/169,295.16 = 68,231.01/x
  3. Step 3: Cross multiply
    122,678.35x = 169,295.16 × 68,231.01
  4. Step 4: Simplify right side
    122,678.35x = 11,551,179,693.35
  5. Step 5: Solve for x
    x = 11,551,179,693.35/122,678.35
  6. Step 6: Final answer
    x = 94,158.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.